In Bethpage, Levittown, and Plainview, Nassau County, dust samples from 12 residences have tested positive for a carcinogenic airborne substance, say environmental experts. As a result, a firm is preparing a class-action lawsuit against Northrop Grumman, accusing the company of contaminating the surrounding air from its Bethpage … [Read more...] about Lawsuits Allege Hazardous Hexavalent Chromium Detected in Attics of Nassau County Homes